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2.4

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
62,167 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 Mercedes-Benz C300 fuel system problems

fuel system problem

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2015 Mercedes-Benz C300 Owner Comments

problem #3

Aug 012021

C300

  • 102,000 miles

A D V E R T I S E M E N T S

The contact owns a 2015 Mercedes-Benz C300. The contact stated that a strong fuel odor could be smelled from both inside and outside the vehicle. The vehicle had to be serviced for the failure; however, upon inspection, the contact believed that the source of the odor was from the engine fuel lines. The dealer was notified of the failure and informed him that there were no recalls on the vehicle. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 102,000.

- Atlantic City, NJ, USA

problem #2

Apr 062020

C300 4-cyl

  • 37,000 miles
I took my car in for service B and was told the low pressure fuel lines were leaking. It is a fire hazard, so it cannot be ignored.the car is 5 years old and has been meticulously maintained. It cost me $750 to repair, and my vehicle was out of manufacturer's warranty.

- Tempe, AZ, USA

problem #1

Sep 272019

C300

  • 47,500 miles
There is a fuel hose (parts number: 274 070 3500) connect to the high pressure pump in front engine area. The fuel hose was fastened by a clamp (not sure the parts number). Because of the design flaw, this clamp will loose since it's a snap joint assemblies not tighten by screws. Under this situation, the fuel hose will loose and affected by thermal expansion, this problem will cause fuel leak/seeping. We can smell fuel near the pump before we start car in cold in the morning and this smell can be smelled until the engine working into the normal operating temperature. Fuel is a very critical safety problem and usually we cannot take notice of this potential problem.

- Moreno Valley, CA, USA

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